Buggy code:
public final class RunListenerPrintReproduceInfo extends RunListener { private static List < String > testClassesRun = new ArrayList < String > ( ) ; private LifecycleScope scope ; private boolean testFailed ; private boolean suiteFailed ; private boolean printDiagnosticsAfterClass ; @ Override public void testRunStarted ( Description description ) throws Exception { } @ Override public void testStarted ( Description description ) throws Exception { } @ Override public void testFailure ( Failure failure ) throws Exception { } @ Override public void testFinished ( Description description ) throws Exception { } @ Override public void testRunFinished ( Result result ) throws Exception { } private static void printDebuggingInformation ( ) { } private void reportAdditionalFailureInfo ( final String testName ) { if ( TEST_LINE_DOCS_FILE . endsWith ( JENKINS_LARGE_LINE_DOCS_FILE ) ) { System . err . println ( ( "NOTE:<seq2seq4repair_space>download<seq2seq4repair_space>the<seq2seq4repair_space>large<seq2seq4repair_space>Jenkins<seq2seq4repair_space>line-docs<seq2seq4repair_space>file<seq2seq4repair_space>by<seq2seq4repair_space>running<seq2seq4repair_space>" + "'ant<seq2seq4repair_space>get-jenkins-line-docs'<seq2seq4repair_space>in<seq2seq4repair_space>the<seq2seq4repair_space>lucene<seq2seq4repair_space>directory." ) ) ; } final StringBuilder b = new StringBuilder ( ) ; b . append ( "NOTE:<seq2seq4repair_space>reproduce<seq2seq4repair_space>with:<seq2seq4repair_space>ant<seq2seq4repair_space>test<seq2seq4repair_space>" ) ; RunListenerPrintReproduceInfo . addVmOpt ( b , "testcase" , RandomizedContext . current ( ) . getTargetClass ( ) . getSimpleName ( ) ) ; RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.method" , testName ) ; RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.seed" , RandomizedContext . current ( ) . getRunnerSeedAsString ( ) ) ; if ( ( RANDOM_MULTIPLIER ) > 1 ) RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.multiplier" , RANDOM_MULTIPLIER ) ; if ( TEST_NIGHTLY ) RunListenerPrintReproduceInfo . addVmOpt ( b , SYSPROP_NIGHTLY , TEST_NIGHTLY ) ; if ( TEST_WEEKLY ) RunListenerPrintReproduceInfo . addVmOpt ( b , SYSPROP_WEEKLY , TEST_WEEKLY ) ; if ( TEST_SLOW ) RunListenerPrintReproduceInfo . addVmOpt ( b , SYSPROP_SLOW , TEST_SLOW ) ; if ( TEST_AWAITSFIX ) RunListenerPrintReproduceInfo . addVmOpt ( b , SYSPROP_AWAITSFIX , TEST_AWAITSFIX ) ; if ( ! ( TEST_CODEC . equals ( "random" ) ) ) RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.codec" , TEST_CODEC ) ; if ( ! ( TEST_POSTINGSFORMAT . equals ( "random" ) ) ) RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.postingsformat" , TEST_POSTINGSFORMAT ) ; if ( ! ( TEST_DIRECTORY . equals ( "random" ) ) ) RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.directory" , TEST_DIRECTORY ) ; if ( ! ( TEST_LINE_DOCS_FILE . equals ( DEFAULT_LINE_DOCS_FILE ) ) ) RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.linedocsfile" , TEST_LINE_DOCS_FILE ) ; if ( ( classEnvRule ) != null ) { RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.locale" , locale ) ; if ( ( classEnvRule . timeZone ) != null ) { RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.timezone" , timeZone . getID ( ) ) ; } } <START_BUG> RunListenerPrintReproduceInfo . addVmOpt ( b , "randomized.file.encoding" , System . getProperty ( "file.encoding" ) ) ; <END_BUG> System . err . println ( b . toString ( ) ) ; } static void addVmOpt ( StringBuilder b , String key , Object value ) { } }

Fix:
RunListenerPrintReproduceInfo . addVmOpt ( b , "tests.file.encoding" , System . getProperty ( "file.encoding" ) ) ;